public static List <Line> GetLinesBetween(DocumentTree doc, string startWord, string endWord)
{
var lines = from page in doc.Pages
from line in page.Lines
select line;
List <Line> retVal = lines.ToList();
for (int i = 0; i < retVal.Count(); i++)
{
if (retVal[i].Words.First() == startWord)
{
retVal.RemoveRange(0, i);
break;
}
}
for (int i = 0; i < retVal.Count(); i++)
{
if (retVal[i].Words.First() == endWord)
{
retVal.RemoveRange(i + 1, retVal.Count() - i - 1);
break;
}
}
return(retVal);
}
/// <summary>
/// Reads PDF file by a given path.
/// </summary>
/// <param name="path">The path to the file</param>
/// <param name="pageCount">The number of pages to read (0=all, 1 by default) </param>
/// <returns></returns>
public static DocumentTree PdfToText(string path, int pageCount = 1)
{
var pages = new DocumentTree();
using (iText.Kernel.Pdf.PdfReader reader = new iText.Kernel.Pdf.PdfReader(path))
{
using (iText.Kernel.Pdf.PdfDocument pdfDocument = new iText.Kernel.Pdf.PdfDocument(reader))
{
var strategy = new iText.Kernel.Pdf.Canvas.Parser.Listener.LocationTextExtractionStrategy();
// set up pages to read
int pagesToRead = 1;
if (pageCount > 0)
{
pagesToRead = pageCount;
}
if (pagesToRead > pdfDocument.GetNumberOfPages() || pageCount == 0)
{
pagesToRead = pdfDocument.GetNumberOfPages();
}
// for each page to read...
for (int i = 1; i <= pagesToRead; ++i)
{
// get the page and save it
var page = pdfDocument.GetPage(i);
var txt = iText.Kernel.Pdf.Canvas.Parser.PdfTextExtractor.GetTextFromPage(page, strategy);
pages.Add(txt);
}
pdfDocument.Close();
reader.Close();
}
}
return(pages);
}
/// <summary>
/// Gets the first lines of a <see cref="DocumentTree"/> which start with a given word
/// </summary>
/// <param name="doc">The <see cref="DocumentTree"/> to search</param>
/// <param name="startWords">The words the lines have to start with</param>
/// <returns>A dictionary containing the starting word with its first line found</returns>
public static Dictionary <string, Line> GetLinesStartingWith(DocumentTree doc, List <string> startWords)
{
var retVal = new Dictionary <string, Line>();
foreach (string word in startWords)
{
var lines = from page in doc.Pages
from line in page.Lines
where line.Words.First().StartsWith(word)
select line;
if (lines.Count() > 0)
{
retVal.Add(word, lines.First());
}
}
return(retVal);
}
